Lantern-frame and blank for making same.



PATENTED JUNE 30, 1903.

A. L. EDWARDS. LANTERN FRAME AND BLANK FOR MAKING SAME.

APPLIGATION FILED MAR. 27, 1903.

2 SHEETS-$HEET 1.

N0 MODEL.

mvsu-ron WITNESSES ww w PATENTED JUNE 30,1903.

A. L. EDWAEDs. I LANTERN FRAME AND BLANK FOR MAKING SAME.

APPLIOATION FILED MAR. 27, 1903.

'2 SHEETS-SHEET 2.

N0 MODEL.

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UNITED STATES I atented .Tune 30, 1903.

PATENT OFFICE.

ALONZO L. EDWARDS, OF WHEELING, WEST VIRGINIA, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS,TO IRWIN PAUL, TRUSTEE, OF

WHEELING, WEST VIRGINIA.

LANTERN-FRAME AND BLANK FOR MAKING SAME.

SPECIFICATION forming part of Letters Patent No. 732,529, dated June 30, 1903.

Application filed March 27, 1903. Serial No. 149.788. (llo model.)

To aZZ whom it may concern.-

Be it known that I, ALONZO L. EDWARDS, of Wheeling, Ohio county, lVest Virginia, have invented a new and useful Lantern- Frame and Blanks for Making Same, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a plan View showing one of the blanks after the first step of drawing. Fig. 2 is a cross-section on the line II II of Fig. 1. Fig. 3 is a plan view showing the blanks after the second drawing operation. Fig. 4 is a cross-section on the line IV IV of Fig. 3. Fig. 5 is a plan View of the blank after trimming. Fig. 6 is a cross-section on the line VI VI of Fig. 5. Fig. 7 is a plan View of the. tubular frame, and Fig. 8 is a cross-section on the line VIII VIII of Fig. 7.

My invention relates to the class of tubular lantern-frames wherein the side tubes are connected at the top with a central depending draft-tube, and it is designed to reduce the number of blanks, the number of drawing operations, and the work of assembling and securing the parts, and at the same time produce an article which is free from soldered joints in the upper portion of the frame and is more attractive in appearance than previous lanterns of this type.

In carrying out my invention I form the entire tubular frame from two similar blanks or halves which are seamed together, and in shaping these blanks I cut from a metal sheet a blank of proper size and shape, similar to that of Fig. 1, with excess metal in the lower inner corners 2 2 and with two lobes 3 3 out in each upper portion at the sides of the drafttube portion. These lobes, however, leave excess metal between them and the top portion of the blank. This blank is then drawn up into the form of Fig. 1, in which the halftube is partiallyformed, the lower elbow portions 4 l being connected by the continuous lower web of metal 5. This cutting of the blank with the web connecting the lower elbows is of great advantage in drawing, for it holds the separated legs together, enables the blank to be handled more easily, and prevents ing the drawing operation. It is well known to those skilled in this art that in the drawing drawing in of the legs toward each other dur-' up of such blanks there is-a strong tendency to draw the legs toward each other, and thus distort the blank, especially where the con tral draft-tube is drawn up at the same time. This tendency is overcome by providing the connecting-web between the lower elbow' portions, since this web holds the legs apart and keeps them in proper relative position during the drawing. My broader claims are not limited to the' use of this connecting.

web; but I claim the same specifically, as it affords a cheap and simple means for holding the legs in proper position. ing operation I preferably also cut the blank from the sheet, the inner part of the blank having been previously out out, though this may or may not be done, as desired. After the first drawing operation I preferably cut away the metal above the upper lobe portions, as shown at 6 6 in Fig. 3, thus removing part of the metal which has been injured in the first step of drawing, and avoiding tearing or drawing of the injured portion into the blank proper. This step'of cutting away I have found important in preventing cracks at the corners of the tube. After this cutting out the blank is subjected to the second drawing operation, in which operation the blank is In the first 'drawcompletely formed, including the semicylin-.

tion the blank is trimmed to make the flan ges or seaming portions of a uniform width, as shown in Fig. 5, one blank being trimmed slightly wider than the other to give the overlapping portion of the seam. The connecting-web portion 5 is then cutout, leaving the elbow portions 4 with a gap between them, and the blanks are then seamed together, forming the tubular frame of Figs. '7 and 8. The lower elbows at are preferably soldered into the bowl of the lantern, no solder being used in the other parts of the seams, and these soldered joints, with the bowl,make the frame rigid and prevent movement in the seams.

The advantages of my invention result from the small number of drawing operations and of blanks and the use of the conneeting-web at the bottom, which holds the legs together and in proper relative position. The frame thus formed is free from transverse joints in its upper parts, and hence is longer lived and more attractive in appearance than former constructions.

The providing of excess metal above the lobes at the top and the cutting away of part of this metal after the first drawing prevents cracking and carrying of the blank.

Many changes may be made in the shape and size of the blanks, the steps employed in forming them, the manner of seaming, &c., without departing from my invention.

I claim 1. The method of drawing a tubular lanternblank having side tube portions integrally united at the top and provided with an integral central tube portion, consisting in cutting out the interior of the blank with side lobes,

subjecting the blank to the drawing operation, cutting said lobes upwardly, and then subjecting the blank to the further drawing operation; substantially as described.

2. Themethod of formingatubularlanternblank, with an integral central tube portion, consisting in cutting out the inner portion of a blank, leaving continuous side portions united at the top and provided with a central depending portion at said top, and with lower elbows, drawing said blank, cutting away portions of metal on each side of the central tube portion, subjecting the blank to a further drawing operation, and then trimming the blank; substantially as described.

3. The method of drawing a tubular lanternblank with an integral central tube portion, consisting in cutting out the inner portion of a blank, leaving the side leg portions integrallyunited at the top and provided with a depending central tube portion, the side leg portions having lower elbows united by a conmy hand.

necting -web, drawing the blank, and then cutting away the comiecting-web between the lower elbows; substantially as described.

4:. A tubular lantern-blank having side tube portions with lower integral elbow portions, the side tube portions being integrally united at the top, and provided with an integral depending central-draft-tube portion; substantially as described.

5. A lantern-blank having tubular side portions integrally united at the top, and having integral lower elbow portions, said side portions being provided with an integral depending central-draft-tube portion; substantially as described.

(5. A tubular lantern-blank having tubular side portions integrally united at the top and provided with an integral depending centraldraft-tube portion, said side tube portions having lower integral elbow portions held by an integral connecting -web extending between them; substantially as described.

7. A tubular lantern'blank having side tube portions provided with lower inwardly-projecting integral elbow portions with their inner ends separated from each other, said side tube portions being integrally united at the top and provided with an integral depending central-draft-tube portion; substantially as described.

8. A tubular lantern-frame composed of two similar blanks seamed together at their edges, each blank having tubular side portions integrally united at the top and provided with an integral depending draft-tube portion, said side portions having integral lower elbow portions with their inn er ends cut apart andseparated from each other; substantially as described.

In testimony whereofI have hereunto set ALONZO L. EDWARDS. \Vitnesses:

ALBERT ScHNELL,

CHAS. S. ADAMS. 

